linux-kernel - [PATCH] i2c: powermac: Simplify reading the "reg" and "i2c-address" property

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Message-Id: <20200408100354.17782-1-aishwaryarj100@gmail.com>
Date:   Wed,  8 Apr 2020 15:33:53 +0530
From:   Aishwarya R <aishwaryarj100@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     aishwaryarj100@...il.com,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Wolfram Sang <wsa@...-dreams.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Richard Fontana <rfontana@...hat.com>,
        linux-i2c@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] i2c: powermac: Simplify reading the "reg" and "i2c-address" property

Use of_property_read_u32 to read the "reg" and "i2c-address" property
instead of using of_get_property to check the return values.

Signed-off-by: Aishwarya R <aishwaryarj100@...il.com>
---
 drivers/i2c/busses/i2c-powermac.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index d565714c1f13..81506c2dab65 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -207,18 +207,18 @@ static u32 i2c_powermac_get_addr(struct i2c_adapter *adap,
 					   struct pmac_i2c_bus *bus,
 					   struct device_node *node)
 {
-	const __be32 *prop;
-	int len;
+	u32 prop;
+	int ret;
 
 	/* First check for valid "reg" */
-	prop = of_get_property(node, "reg", &len);
-	if (prop && (len >= sizeof(int)))
-		return (be32_to_cpup(prop) & 0xff) >> 1;
+	ret = of_property_read_u32(node, "reg", &prop);
+	if (ret == 0)
+		return (prop & 0xff) >> 1;
 
 	/* Then check old-style "i2c-address" */
-	prop = of_get_property(node, "i2c-address", &len);
-	if (prop && (len >= sizeof(int)))
-		return (be32_to_cpup(prop) & 0xff) >> 1;
+	ret = of_property_read_u32(node, "i2c-address", &prop);
+	if (ret == 0)
+		return (prop & 0xff) >> 1;
 
 	/* Now handle some devices with missing "reg" properties */
 	if (of_node_name_eq(node, "cereal"))
-- 
2.17.1